Exhaust heater for vehicles



'.J. EULBERG EXHAUST HEATER FOR 'VEHICLES sept. 21 1.926. 1,600,219

vFile'd May 2:5. 1925-- 2 sheets-sheen` 1 Sept. 21 1926.

, J. EULBERG EXHAUST HEATER FOR VEHICLES Filed May 23. 1925' f zshets-snet 2- of the type in which the exhaust Patented Sept. 21, 1926.

UNITED STATES JOSEPH EULBERQ, oF AL'roN, Iowa.

EXHAUST HEATER FOR VEHICLES.

Application led May 23, 1925. Serial lo. 32,262.

My invention relates to a vehicle heater ipe of the vehicle is enclosed for a portion oi) its length in a sleeve, through which a current of air is allowed to pass and to be warmed by contact with the exhaust'pipe, the current of air being then discharged into the vehicle through a suitably located register.

An object of my invention is to provide a heater of this type of simple, durable and inexpensive construction, and which is especially adapted tot over the elbow of van exhaust pipe wherein a portion of the pipe is inclined relative to the body thereof, The advantage of such -an arrayngement lies in utilizing the entire length of the exhaust pipe from its forward end to a oint from which it is convenient to exten Y a register through the floor boards of a carforwardly of the front seat of the vehicle.

More specifically, it is my object to provide such a heater employing two sleeves which may be placed around the inclined and body portions of i the exhaust pipe, respectively, without removing the exhaust pipe from the exhaust manifold or removing themanifold, and which'are provided with biased ends adapted to be secured togetherto `form a continuous elbow-shaped tu e.

A still further object is to, provide such a pair of sleeves in which the union of the biased ends will permit `rotation of the sleeves relative to each other to ositions of alignment whereby the same eeves may be both secured around the straight portion of an exhaust pipe to provide a heater for the rear seat of a two-seated vehicle.

A further object is to provide a structure allowing the joining of two individual heaters togetherjto form one continuous double heater for a two-seated car.

Another object is to provide means for deilecting escaped combustion gases away from the mouth of the heater behind the manifold packing nut.

A still further object is to provide a register having a lnovel shutter ada ted, when closed, to uncover an. aperture, a lowing escape-of the lheated airA under the floor boards of the car, and when open to closev said aperture, whereby the entire current of air will be thrown into the car.v

Another object is to provide a register drawings, in which Fig. 1 is a perspective view of a heater attached to an exhaust pipe of a car, the floor boards of which are shown in section. Fig. 2 is a transverse sectional view through the register.

Fig. 3 is an end View of the rear sleeve, the exhaust pipe being shown in section.

Fig. 4 is a detail sectional view taken on the line 4--4 of Fig. 3.

Fig. 5 is a pla n view of the heater. Fi .-6 is a detail sectional view taken on tle line 6-6 of Fig. 5.

Fig. 7 is a detail sectionalview Ytaken on the line 7-7 of" Fig. 6.

Fig. 8 is a detail view of the upper end of the lforward sleeve, illustrating the means for attaching the gas deflector.

Fig. 9 is a longitudinal sectional view through a heater. in which the sleeves are aligned and attached in tandem relation to the rear end of another heater.

Fig. 10 illustrates a modified form of a collar used to attach the rear sleeve to the exhaust pipe, and used in connection with the tandem construction shown in Fig. 9.

I have used the reference character 10 to indicate the dash of a vehicle having the` front` seat, `11, the horizontal floor board, 12, and the forward inclined floor board, 13. The exhaust manifold, 14, is connected at its rear end to the inclined portion, 15 (see Fig. 7), of tbc exhaust ipe, which is curved as indicated in dotte lines in Fig.

A1 to form-the elbow, 16, and thence extended rearwardly inthe straight horizontal portion,.17.

The forward sleeve, 18, is formed of a` sheet of metal bent into cylindrical form and having its sides extended outwardly to form anges, 19. p

The flanges, 19, are cut short of the rear end of the sleeve, 18, and that end of the sleeve iscut on a' bias and formed with an outwardly projecting `annular flangep 20.

an annular channel, 23, adapted to'` receive the flange, 20, in order to connect the two sleeves together.

' The ends of the sleeves, 18 and 21, are widened somewhat along those diameters Which are perpendicular to the axes of the sleeves, in order that the biased ends may have true. circular, rather than elliptical, outlines. Thus rotation of the sleeves relative to each other will be permitted when adjusting them in position upon an exhaust 1 e. p t will now be seen that in order to install one of the heaters it is only necessary to spread the flanges apart a distance suiiicient to receive the exhaust pipe, ,the sleeve, 18, being inserted first, and the sleeve, 21, then being spread to simultaneously receive the portion, 17, of the exhaust pipe and also enclose the flange, 20. f In order to support the -rear sleeve in proper spaced relation to the exhaust pipe, I provide an annular outwardly-beaded ,channeh 24, in the end thereof adapted to 'receive the periphery of a ring, 25. The ring, 25, is split to allow encircling of the exhaust pipe, and the ends thereof are turned up to form ears, 26, which may be secured together by means of a bolt, or the like, 27.

The ring, 25, is formed of a single sheet of metal, die cut into ring shape, and drawn pipe, the ring portion, 25, being necessarily A pressed into conical shape in order to allow the form-ing of the ears, 26.

With the ring, 25, in place the sleeve, 21,. may be secured about the ring by inserting the bolts, 29, in properly positioned openings in the flange, 22, and drawing the same together. rlhe flanges, 19, of the sleeve, 18,'

are secured together by means of bolts, 30.-

llt is desirable to secure the mouth oic the sleeve, 18, in concentric relation to the exr haust pipe and extend it yaway from the engine in order to avoid, as muchas pos` sible, the current of air moving closely adjacent the en ine sides, which tends to become laden with odors from the engine. l provide a device which serves to both accomplsh this function, and further to defleet any gases which may escape from behind the packing nut, 14a.

The side 'of the sleeve, 18, adjacent the engine is provided with slots, 31. 'llhe de- Hector has a collar', 32, adapted to extend the side o around the exhaust` pipe, as shown in Fig. 6 in dotted lines, and which lterminates in two outwardly drawn portions, 33, adapted y to extend throughthe slots, 31, and outside of the lip, 34, formed between the slots, 31.

, The deilectorplatey proper, '35, is suby cui-rents of air llowing past the exhaust pipe in the direction indicated by the arrow, 353. These deflected currents of air will. carry -any gases which may esca e behind the manifold packing nut,`14, eyond andlto the mouth of the sleeve, 18, as indicated by the arrows.

The deflection of the air currents on the outer side of the deflector will cause the adjacent air currents to be also deflected and therebyto enter the sleeve, 18. I find that the velocity oivair currents flowing past the sleeve is not suflicient to overcome this deilecting action upon those currents which pass beyond the deliector.

lThe portions, 33, terminate in outwardly projecting ears, 36,` adapted to receive a stove bolt, 37, by means of which the collar, y

32, may be drawn tightly around the exhaust pipe.

In the side of the rea-r sleeve is cut an opening, 38, which issquare in plan.` (See Fig. 2.) A. register pipe, 39, square in cross section is riveted, or otherwise secured, as at 40, to the ,sleeve surrounding the openiing, 38, and extends upwardly, as shown. with a collar, 28, to encompass the exhaust- The-register, 41, is formed of a sheet of material `bent intol the shape of a square cage, adapted to setI over the pipe, 39, in any one of four positions.

The upper end of one of the sides of the register, 41, is out away tol provide an aperture, 42, and a'collar, 43, is secured to the remaining three sides of the register by is closed, extends under one side oi2 the collar, 4&3.

The floor board, 12, is provided with a lll) y which receives the aperture, 42, and' the' rectangular opening, 49, to receive the register, the opening being widened on theside collar, 43, being provided with'a llange bent under-,as at 50, and thence downwardly, as atl, in order to space the side-wall ofthe Y register away from the opening on that side.

` dotted' line position shown and completelyv closes the aperture, 42, at' the` same time be` ing engaged against the outer face voi? the- 'Ihe opening, 49, may -be further cut away on an angle, as at 52, to provide ample passageway for the escape of air when isteris closed. A l

The inclined portion, 47, of the shutter the reg'- engages the fiange, 50, whenv the shutter is in, closed position, as shownin Fig. 2, and the end of the portion, 47, is cut so. 'asto just -be received Iwithin the perpendicular flange, 51. Thus itv will be seen theflange,

51, serves not only to position the register within the opening'butvto protect the edge of-the shutter las well. v

.The inclined portion, 47, moves vdownwardly when .the shutter is raised .to the wall, 41, which servestolimit thelupward movement of the shutter, 46, to the incllned position shown in dotted lines.

tity of heated -air may In` Fi lathe register is shown'fattached to the pipe, 39, in such a position that the v heated air will be directed toward the drivers seats* By removing the register and turning it through an angle ofninety degrecs4 the heat maybe thrown directly to the rear. 'For this purpose the opening, 49, should be cut as .wide longitudinally'of the channel as laterally. These two positions are probably the 1 only` two positions desir-v able, but it willjbe seen that if the occupants of the car wish to esca the direct current of heated air the reglster .mal be turned to either one of the other possi le positions whichit may assume relative' to thepipe, 39.

I have found that my heater," which has a cross 1section more thansix times .as great as that ot 'the ordinary 'exhaust plpe, and which is of greater vlength than the ordinary heater,V due to the elbow bend enclosing the'.

inclined portion-of the exhaust pi throws a much greater quantity' of heate air than the average heater now,` oil-the` market.

Bythrowing the heat toward the adjacent door of thevehi'cl'e a suilicient quanbe supplied tothe car and yet the legs of theoccupants are not subjectedvto the-direct current of air 'from the heater, which sometimes becomes uncomfortable. Y

In Fig. 9 I have shown themethod of attaching two heaters in tandem. The rear portion 'fof the forward heater, which is -attached in the same mannersh'ow in Fig.

*9. The" rearlheater e two sleeves, 18and 1, is shown atA in is indicated at B, and t 'sleeve receiving a portion of the 20, have been turned so as to bring them in alignment. The forward end of the sleeves, 18, is provided with a1 peripheral channel, 53, shaped to receivethe channel, 24, in the sleeve, 21, and apertured collar 54, issubstituted for the lcollar, 25, to support the. end-of the forward heater. The end of the rear heater is then closed by the collar, 25. The heaters are of such length -that the register of the rear heater will be in proper positionl to extend through the floor boards behind the front seat and ahead of the rea-r seat. ,'pThisv construction is not illustrated in the drawings since the lengths of cars vary, and it is thought to be evident that the heaters canbe readily adapted to serve this purpose.

Some changes may -be made in the con` struction and arrangement of the parts of my invention without departing' from thev real spirit andpurpose of my invention, and

it is my intention to cover by my claims anyv -haust pipe, when in the latter mentioned positions, and adapted to receive the straight l portion of. -an exhaust ipe when in aligned position, [and means or securing the free endsy of the sleeves to an exhaust plpe.

y 2. In an exhaust heater, aV forward sleeve comprising a' longitudinglg drical sheet of material of cient resilience split, cylin-f to allow the receptiony of an exhaust pipe through the split, the rear end of the sleeve being out on a bias, a rear sleeve com rising .a longitudinall split, vcylindrical s eet of material of su cient resilience to allow the reception of an exhaust ipe through the split, the forward end of t e rear sleeve bein cut on ja bias, the biasedend of one sleeve belng extending flan e, the end of the other sleeve being provide receive 'said flan e,'and means for securing thesleeves toget er around an exhaust pi having a portion inclined relative to t e 1.20.

body ofthe. pi e, the forward sleeve receiving the mcllne portion of the pi e, the rear dy of the rovided with an annular, outwardly' with an annular channel toy pipe, and .the annular channel receiving the `annular flane in such relation' as to dispose the sleeves 1n positionl inclined relative to each other.- l 3. In combination with an exhaust pipe having a manifold packing nut, a heater including a sleeve encircling the pipe and having a mouth adjacent said nut, and a deiiector secured to the pipe, adapted to deflect gases escaping around the nut, beyond the mouth of said sleeve.

4. In an exhaust heater, a sleeve adapted to encircle an exhaust pipe, and a combined gas-'deflecting plate and clamp adapted to secure the forward end of the sleeve to the pipe.

5. In combination With an exhaust pipe having a manifold packing nut at its forward end, a heater including a sleeve encircling the pipe and terminating adjacent Asaid nut, and means disposed between said nut and the mouth of the sleeve to preventl 1 gas escaping around the nut fromentering -said nut, and a deflector disposed between the mouthof said sleeve and said nut and inclined forwardly and away from the exhaust pipe, said deiiector being adapted to prevent gases escaping around the nut from entering the sleeve.

Signed at Sioux City, in the county of Toodbury and State of Iowa, this lst day of May, 1925.

JOSEPH EULBERG. 

